What does Estoy no bueno mean in English?

"Estoy no bueno" is a colloquial Spanish phrase that means "I'm not feeling well" or "I'm sick". It's a more casual and informal way to express that you are not healthy.

Here are some other ways to say the same thing in Spanish:

* Estoy mal: This is a more general way to say you are not feeling well.

* Estoy enfermo/enferma: This means "I am sick" and is a more formal way to express illness.

* No me siento bien: This means "I don't feel well" and is a more neutral way to express illness.

Remember that "Estoy no bueno" is a very informal expression and should only be used with close friends or family.